from birth与since birth的用法区别与搭配时态
2024-09-08 14:30:42 学考宝 作者:佚名
问题描述
from birth 与 since birth 都表示“自出生起”,它们的用法有区别吗?另外,它们所搭配的时态有什么特点吗?谢谢!
老师答疑
黎老师:
since 和 from 表示时间的用法区别:
一、《薄冰英语惯用法词典》指出:
since 是指延续到说话时刻的动作或情况开始于何时,是站在动作终止的时间点上往过去追溯计算。而 from 只表示某事的起点。 ......
I was there from three o'clock, but nobody came. 我从3点起一直在那儿,但谁也没来过。
不可说:I was there since three o'clock, but nobody came.
I've been here since three o'clock, but nobody's come yet; I think I'll go home soon. 我从3点起就一直在这儿,但是没有人来过。我想这就回家去。
不可说:I've been here from three o'clock, but nobody's come yet; I think I'll go home soon.
有 from 表示时间起点的句子,现在、过去、将来的时态都可以用;而 since 表示时间起点的句子不用将来时态。
二、since 可以作介词,也可以作连词(引导时间状语从句),from 只能作介词,不能作连词。例如:
She has missed it since we moved to the city. 自从我们搬进城后她一直想念它。(《张道真高级英语词典》p.1435)
不能说:She has missed it from we moved to the city.
陈老师:
from birth 只表示起点,不强调持续,所以它连用的时态比较灵活(可根据句子意思的需要选用多种时态)。
since birth 既表示起点,同时也强调持续,既可指从出生一直持续到现在(此时通常连用现在完成时),也可指从出生一直到过去某一时间(此时通常连用过去完成时)。